Lightwave guide produced from special substrate glasses by ion e

Details Lightwave guide produced from special substrate glasses by ion e Lightwave guide produced from special substrate glasses by ion e

1989-11-16

1991-04-02

Chaudhuri, Olik

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 66, 264 15, 264 27, 65 314, 350 9631, C03C 1304

Patent

active

050047078

ABSTRACT:
Production of mono- or multimodal lightwave guides from special substrate glasses of the glass system SiO.sub.2 --B.sub.2 O.sub.3 --Al.sub.2 O.sub.3 -- K.sub.2 O--F.sup.-, with partial exchange of the Li.sup.+, Na.sup.+, and/or K.sup.+ ions present in the glass against Cs.sup.+ ions, the substrate glasses having the following compositions (in mol.-%): SiO.sub.2 45-72, B.sub.2 O.sub.3 8-25, Al.sub.2 O.sub.3 1-25, Li.sub.2 O 0-1, Na.sub.2 O 0-2, K.sub.2 O 6-18, MO 0-1 (MO=MgO, CaO, SrO, BaO, ZnO, PbO), in which a portion of the O.sup.- ions present in the glass are replaced by 1-15 mol % F.sup.- ions.

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